rent
Well-Known Member
- Joined
- Jul 18, 2021
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- Vehicle(s)
- 2021 JLUR XR
Thanks for the clarification.@rent
The circuit board and battery in the stock fob is all you need to work with a JL that has proximity.... to start it and drive it. The RFID chip does not come into play with proximity.
With just the RFID Chip, no ....you cannot unlock the JL.
An RFID chip hidden in the JL is best ...... for just in case your fob battery ever went dead in the fob, or the circuit board in the fob died, etc.. (rare event) Anyway....You do not need the RFID chip.... only time you need it is if the fob stops working (battery dead or circuit board dies, etc.) and you have to push the chip against the start button while your foot is on the brake pedal to start the JL.
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The reason I asked my earlier question: thieves are using repeater devices to capture and relay signals from key fobs to unlock doors and drive away the vehicle. I was curious what part of the fob is being targeted in these scenarios. Sounds like it's the circuit board and electronics.
If that's indeed the case, I'm wondering if it's feasible to make a fob that has an on/off switch as a means to defeat these kind of attacks.
Placing the key fob in a faraday cage (metal-lined pouch) should also be effective. But it is far too cumbersome than an on-fob solution.
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